Unresolvable Identifier

arXiv:2604.20277 · detector doi_compliance · cross_source · 2026-05-20 02:07:54.996154+00:00

critical doi_compliance unresolvable_identifier

Identifier '10.1063/1.5097842(2019' is syntactically valid but the DOI registry (doi.org) returned 404, and Crossref / OpenAlex / internal corpus also have no record. The cited work could not be located through any authoritative source.

Paper page Integrity report arXiv Try DOI

Evidence text

Hu, H.et al.Room-temperature out-of-plane and in-plane ferroelectricity of two-dimensionalβ-InSe nanoflakes. Appl. Phys. Lett.114, 252903, DOI:10.1063/1.5097842(2019)

Evidence payload

{
  "arxiv_id": null,
  "checked_sources": [
    "crossref_by_doi",
    "openalex_by_doi",
    "doi_org_head"
  ],
  "doi": "10.1063/1.5097842(2019",
  "raw_excerpt": "Hu, H.et al.Room-temperature out-of-plane and in-plane ferroelectricity of two-dimensional\u03b2-InSe nanoflakes. Appl. Phys. Lett.114, 252903, DOI:10.1063/1.5097842(2019)",
  "ref_index": 12,
  "verdict_class": "cross_source"
}